Alert archive / Iowa / Tornado Warnings in 2002

Tornado Warning 13, NWS La Crosse, WI

June 26, 2002Winneshiek County, Iowa

NWS La Crosse, WI issued this tornado warning at Jun 26, 2002, 1:09 PM CDT for Winneshiek County, Iowa. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 26, 2002, 1:09 PM CDT (18:09 UTC)
Expired
Jun 26, 2002, 1:45 PM CDT
In force
36 min
Issued by
NWS La Crosse, WI
Area
Counties, with a storm outline in the text

County Winneshiek County, IA

The radar

The La Crosse radar (KARX), 64 km from the middle of the area, began a volume at 18:12 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 6.2 hours before the alert went out and 219 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2002-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1160 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2002-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1160 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1198 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KARX 261809
TORLSE
IAC191-261845-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
ISSUED BY NWS DES MOINES IA
108 PM CDT WED JUN 26 2002

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN AND CENTRAL WINNESHIEK COUNTY IN NORTHEAST IOWA

* UNTIL 145 PM CDT

* AT 1240 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 12 MILES NORTH OF DECORAH...OR ABOUT 71 MILES EAST OF MASON
  CITY...MOVING SOUTHEAST AT 20 MPH.

* THE TORNADO WILL BE...
  NEAR DECORAH AROUND 130 PM

AT 105 PM...SPOTTERS REPORTED A TORNDAO NEAR BURR OAK.

SEEK SHELTER IN A STURDY BUILDING.

LAT...LON 4350 9163 4350 9198 4326 9186 4326 9161

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 1:47 PM CDTSevere Thunderstorm WarningARXWinneshiek43 min
Jun 26, 2:33 PM CDTTornado WarningARXFayette27 min
Jun 26, 3:36 PM CDTSevere Thunderstorm WarningARXClayton24 min

Nearby

Tornado Warnings in Iowa, 2002Every tornado warning in 2002Tornadoes in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.